Flights (sometimes called risers or cleats) are raised walls running the width (or part width) of the belt, and spaced at regular intervals along the belt. Their usual purpose is on inclined conveyors to help lift the product up the incline, and to resist rollback. Occasionally, the can also be used to separate and position individual large products.
Flights can come in various heights, ranging from a few millimetres to 70mm or more, though a typical flight height is 25mm
They are typically made of glued or welded PVC, PU or rubber, though for heavy-duty applications it is possible to have metal flights, which are through-bolted onto the belt.